In order to create the list, the EWG looked at over 36,000 samples that the USDA and the Food and Drug Administration took from 48 popular fruits and vegetables.

The resulting list features produce that, when grown conventionally, contains pesticides that are harmful to humans. The only way to avoid ingesting these pesticides is to buy organic when it comes to these fruits and vegetables.

Keep scrolling to see the complete list, ranked from least to most pesticide contamination.

6. Pears

While pears used to be number 22 on the Dirty Dozen list, they're now in sixth place, thanks to a sharp increase in the pesticides used when growing non-organic pears in recent years. Since 2010, the amount of pesticide residue on pears has more than doubled, according to the EWG.

3. Nectarines

The USDA Pesticide Data Program found that 97% of nectarines tested were contaminated with at least one kind of pesticide. In total, the program discovered 33 different types of pesticides on nectarines.